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30484211 = 239127549
BaseRepresentation
bin111010001001…
…0011011110011
32010100202110212
41310102123303
530300443321
63005214335
7520053152
oct164223363
963322425
1030484211
111623126a
12a2613ab
1364144c4
144097599
152a2255b
hex1d126f3

30484211 has 4 divisors (see below), whose sum is σ = 30612000. Its totient is φ = 30356424.

The previous prime is 30484163. The next prime is 30484217. The reversal of 30484211 is 11248403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11248403 = 23489061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30484211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30484217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63536 + ... + 64013.

It is an arithmetic number, because the mean of its divisors is an integer number (7653000).

Almost surely, 230484211 is an apocalyptic number.

30484211 is a deficient number, since it is larger than the sum of its proper divisors (127789).

30484211 is a wasteful number, since it uses less digits than its factorization.

30484211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127788.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 30484211 is about 5521.2508546524. The cubic root of 30484211 is about 312.3860653455.

The spelling of 30484211 in words is "thirty million, four hundred eighty-four thousand, two hundred eleven".

Divisors: 1 239 127549 30484211